A Wideband IF Receiver Chip for Flexibly Scalable mmWave Subarray Combining and Interference Rejection

A Wideband IF Receiver Chip for Flexibly Scalable mmWave Subarray Combining and Interference Rejection

Abstract
https://ieeexplore.ieee.org/document/10146045
Device
Subarray-based IF downconversion receiver on a 0.28mm2 45 nm PDSOI CMOS chip.
Spectrum
27.9 GHz
Novelty
Both spatial rejection of mmWave subarrays and interbeam interference cancelling (IBIC) at IF by rotating the interfering beam cancels the interference from another independent subarray.
Performance
34 to 37 dB rejection for 50-100 MHz 5G NR signals; Up to 19 dB rejection over 100 MHz bandwidth and 16 dB over 400 MHz for a fully overlapping interferer for a multicarrier 5G NR waveform;